Home Postcode finder VIC Dunkirk Dunkirk postcode VIC Dunkirk is a locality in Victoria covered by postcode 3630. Postcode 3630 State or territory Victoria (VIC) Region Vic Country Add a free Dunkirk business listing Be the first listing in Dunkirk Common questionsWhat is the postcode for Dunkirk?Dunkirk, VIC has the postcode 3630.What state is Dunkirk in?Dunkirk is in Victoria (VIC).Does postcode 3630 cover more than one suburb?Yes. Postcode 3630 covers 6 localities, so the postcode alone does not identify Dunkirk. Browse other postcodes in Victoria, or widen the search to every Australian postcode.